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Thread: Ways to increase MMW...

  1. #1
    Join Date
    Jan 2010
    Posts
    141

    Ways to increase MMW...

    Hello,
    I am looking for ways of increasing my MMW of my lowes plate dry cell. As of now, here are some of my results.

    Voltage:12
    Amps:30
    Volts/plate:2.35
    ML:500
    Seconds:19
    LPM:1.58
    MMW:4.39

    Voltage:12
    Amps:18
    Volts/plate:2.35
    ML:500
    Seconds:30
    LPM:1
    MMW:4.63

    Any ideas?

  2. #2
    Join Date
    Oct 2009
    Location
    Stanfordville, NY
    Posts
    799
    To increase your MMW, you'll need to add more bipolar plates.
    Just out of curiosity, how are you arriving at your MMW numbers?
    Something just doesn't add up.
    1998 Explorer 4x4, 4.0
    14 cell / 2 stack 6x9" drycell reactor 28%KOH dual EFIE, MAF enhancer, IAT & ECT controllers, 2.4 LPM @ 30 amps. 6.35 MMW http://reduceyourfuelbill.com.au/forum/index.php

  3. #3
    Join Date
    Jan 2010
    Posts
    141
    I used a mmw calculator. I will do some more flow tests today and get new data. I'm also thinking it could be my connectors, because they are getting burning hot, which means energy is being wasted.

  4. #4
    Join Date
    Jan 2010
    Posts
    141
    Ok, I just read all of the "Painless Experiment in HHO" thread and he was getting much better results than me with the same cell. I am running 2.35 volts per gap and so was he, and with the exact same 21 plate cell configured as: -NNNN+NNNN-NNNN+NNNN- he was able to achieve an mmw of 4.7 and I am actually at 4.1 right now. Here is the page where he says this...

    http://www.hhoforums.com/showthread.php?t=771&page=20

    Any ideas why this is? Here are some of my thoughts:

    -my wires/connectors are getting hot (could be wastefull, but to what extent?)
    -I might have some gas leaks

    Pretty much the only difference between his cell and mine are my reservoir, hose connections, and wiring... We are both using 1/4 inch hose...

  5. #5
    Join Date
    Jan 2010
    Posts
    141
    BREAKTHROUGH!

    I just re-measured in between plates voltage and it is at 2.9! That is way too much. With a gap of 2.9 volts, that would lower my mmw versus a gap of 2 volts, correct? All I need to do is add one more N plate...

  6. #6
    Join Date
    Feb 2010
    Posts
    16
    If your wires are heating up, try using a higher gauge (lower number) wire to resolve that issue.

  7. #7
    Join Date
    Oct 2009
    Location
    Stanfordville, NY
    Posts
    799
    You need to add at least one more bi-polar plate per stack.
    What is the surface area of one side of one plate within the gasket area?
    1998 Explorer 4x4, 4.0
    14 cell / 2 stack 6x9" drycell reactor 28%KOH dual EFIE, MAF enhancer, IAT & ECT controllers, 2.4 LPM @ 30 amps. 6.35 MMW http://reduceyourfuelbill.com.au/forum/index.php

  8. #8
    Join Date
    Jan 2010
    Posts
    141
    So would having a gap of 2.9 volts vs 2 volts decrease my mmw?

  9. #9
    Join Date
    Oct 2009
    Location
    Stanfordville, NY
    Posts
    799
    Of course. Like I asked before, what is the active area of one side of one plate?
    1998 Explorer 4x4, 4.0
    14 cell / 2 stack 6x9" drycell reactor 28%KOH dual EFIE, MAF enhancer, IAT & ECT controllers, 2.4 LPM @ 30 amps. 6.35 MMW http://reduceyourfuelbill.com.au/forum/index.php

  10. #10
    Join Date
    Jan 2010
    Posts
    141
    Ok, I added one more N plate for a total of four now. It is wired as follows:
    -NNNN+NNNN-NNNN+NNNN-NNNN+ (25 plates). It is pulling 17 amps when warmed up and is producing 1 LPM. This is very good! I am using a 12 volt atx PSU so that is why I am doing 4 neutrals instead of 5 because I am running at 12 volts, not 13.8.

    Voltage: Roughly 12 (PSU fluctuates by .2 volts)
    Voltage per gap: 2.3
    Amps: 17
    Seconds: 60
    Liters: 1.00
    LPM: 1.00
    MMW: 4.90

    I would say that is pretty good with only 25 switchplate covers! Im gonna bring it up to 30 amps tommorow and see how we do!

    Oh, and there is a active area per side of plate of 6.48 inches (There are 25 plates total, so (6.48x2x23)+(6.48x2)=311.04 total square inches.

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